Skip to main content
. Author manuscript; available in PMC: 2017 May 1.
Published in final edited form as: Behav Genet. 2016 Jan 29;46(3):403–415. doi: 10.1007/s10519-016-9779-1

Table 1a.

Prevalence (n [%]) of familial factors for MSDP-E by propensity quartile

Familial
factors
Overall1
by Quartile1
No
MSDP
(N=514)
MSDP-E
(N=414)
0–25 %ile
26–50 %ile
51–75 %ile
76–100 %ile
No
MSDP
(N=183)
MSDP-E
(N=41)
No
MSDP
(N=150)
MSDP-E
(N=89)
No
MSDP
(N=115)
MSDP-E
(N=117)
No
MSDP
(N=66)
MSDP-E
(N=167)





Race (Black) 65 (13%) 69 (17%) 12 (7%) 6 (15%) 17 (11%) 10 (11%) 18 (16%) 23 (20%) 18 (27%) 30 (18%)
Paternal Smoking 300 (58%) 234 (57%) 124 (69%) 18 (47%) 81 (56%) 41 (53%) 59 (56%) 73 (67%) 36 (69%) 102 (70%)
Maternal Education >13 261 (51%) 177 (43%)* 106 (59%) 29 (71%) 87 (58%) 46 (52%) 52 (45%) 59 (51%) 16 (24%) 43 (26%)
Paternal Education >13 225 (44%) 166 (40%) 91 (53%) 16 (39%) 62 (42%) 37 (44%) 52 (47%) 52 (44%) 20 (30% 61 (39%)
Maternal FTND severitya: 0 134 (26%) 46 (11%) 102 (60%) 20 (57%) 30 (20%) 18 (20%) 2 (2%) 8 (7%) 0 (0%) 0 (0%)
1 154 (30%) 107 (26%)** 28 (17%) 10 (29%) 61 (41%) 27 (30%) 49 (43%) 46 (39%) 16 (24%) 24 (14%)
2 115 (22%) 95 (23%)** 31 (18%) 2 (6%) 38 (25%) 36 (40%) 36 (32%) 39 (33%) 10 (15%) 18 (11%)
3 79 (15%) 136 (33%)*** 8 (5%) 3 (9%) 15 (10%) 8 (9%) 22 (19%) 19 (16%) 34 (51%) 106 (63%)
4 16 (3%) 24 (6%)** 0 (0%) 0 (0%) 6 (4%) 0 (0%) 4 (4%) 5 (4%) 6 (9%) 19 (11%)
Paternal AD 3+ sx 97 (19%) 121 (29%)* 21 (11%) 6 (15%) 22 (15%) 12 (13%) 26 (23%) 27 (23%) 28 (42%) 76 (46%)
Maternal AD 3+ sx 28 (5%) 22 (5%) 4 (2%) 0 (0%) 10 (7%) 4 (4%) 12 (10%) 2 (2%) 2 (3%) 16 (10%)
Maternal Ageb: ≤20 58 (11%) 63 (15%) 20 (11%) 8 (20%) 8 (5%) 12 (13%) 14 (12%) 13 (11%) 16 (24%) 30 (18%)
≤30 206 (40%) 137 (33%) 80 (44%) 14 (34%) 66 (44%) 39 (44%) 40 (35%) 49 (42%) 20 (30%) 35 (21%)*
≤35 79 (15%) 58 (14%) 33 (18%) 10 (24%) 24 (16%) 12 (13%) 14 (12%) 24 (21%) 8 (12%) 12 (7%)
>35 25 (5%) 13 (3%) 13 (7%) 1 (2%) 10 (7%) 5 (6%) 2 (2%) 0 (0%) 0 (0%) 7 (4%)
Maternal Year of Birthc: ≤1949 114 (22%) 75 (18%) 52 (28%) 9 (22%) 34 (23%) 18 (20%) 16 (14%) 20 (17%) 12 (18%) 28 (27%)
≤1959 169 (33%) 166 (40%) 47 (26%) 10 (24%) 39 (26%) 32 (36%) 47 (41%) 40 (34%) 36 (55%) 84 (50%)
≥1960 74 (14%) 67 (16%) 28 (15%) 10 (24%) 18 (12%) 12 (13%) 20 (17%) 12 (10%) 8 (12%) 33 (20%)
Parents Never Together 32 (6%) 33 (8%) 12 (8%) 4 (11%) 6 (4%) 4 (5%) 8 (9%) 5 (4%) 6 (12%) 20 (15%)

Characteristics of individuals from mothers with (MSDP-T)/without (no-MSDP) a history of smoking during the first trimester for each quartile of the MSDP-T risk distribution. Notation: proportion and percentages reported are relative to the total sample size for the given category for “No MSDP” or MSDP-T;

***

p<.001;

**

p < .01;

*

p<05; sx = symptom;

1

Logistic regressions performed on the overall sample or within quartile to examine relationship between MDSP and familial factors;

a

Reference group for the multinomial logistic regression is FTND=1 for Overall, Q1, and Q2 but is FTND=4 for Q3 and Q4 due to low cell counts;

b

Reference group for the multinomial logistic regression is maternal age 21–25;

c

Reference group for the multinomial logistic regression is maternal year of birth 1950–1954;

can’t compute difference due to cell size 0;

used as reference group.